Chelsea manager Jose Mourinho cranked up the mind games ahead of Monday's heavyweight clash at Manchester City by suggesting that Lady Luck had been smiling on the Premier League leaders in recent weeks.

"Their players are obviously very good and their manager (Manuel Pellegrini) is also doing a good job," Mourinho told a news conference on Friday.

"On top of that, and this is just pure coincidence, the reality is they have had many crucial decisions in their favour.

"They were lucky against Liverpool, against Newcastle and against Tottenham. But I repeat this is just pure coincidence. "

Fortune certainly favoured City on Wednesday when they romped to a 5-1 league win at White Hart Lane after Tottenham defender Danny Rose was sent off for a clean tackle early in the second half that prompted the referee to award a penalty.

Rose has since had his red card rescinded by the Football Association.

City, who have been banging in goals left, right and centre all season, will be without leading scorer Sergio Aguero on Monday.

The Argentine has been ruled out for a month after sustaining a hamstring injury at Spurs.

Mourinho said it would hardly matter because Pellegrini has an embarrassment of striking riches at his disposal.

"City score goals and I don't think for them it is important if somebody is injured," added the Portuguese.